Researchers have developed a smartphone app that captures full-body motion without the need for special cameras or expensive equipment. Engineers at Northwestern University in Illinois, U.S. have created a system called “MobilePoser” which transforms a user’s smartphone into a movie-quality full-body motion capture system. Most film fans are familiar with motion-capture techniques, which are often revealed in behind-the-scenes footage. To create CGI characters — like Gollum in The Lord of the...